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BDUK NGA State Aid Assessment template (worked example)July 2016

1. Introduction

The purpose of this document is to gather and present evidence supporting suppliers’ claims for Next Generation Access (NGA) compliance in accordance with BDUK’s NGA technology Guidance1

This template should be completed by suppliers that operate an NGA Broadband Network or have plans to build and operate such a network.

Suppliers are advised to engage the services of suitably qualified individuals when completing this template, i.e. with the appropriate detailed knowledge of the technical and commercial aspects of the solution proposed and of the state aid requirements that apply to that solution.

The evidence provided in the template will be used for assessment of NGA and State aid compliance by Broadband Delivery UK’s (BDUK) National Competence Centre (NCC).

2. Requirement

The subsidised solution must deliver a ‘step change’ in network capability and service availability and consistently provide a high quality experience to end users.

2.1 This requirement ensures that where a basic broadband infrastructure already exists, State aid must only be used to deploy infrastructure that genuinely offers a significant new capability to end users.

1 BDUK, 2016 NBS State Aid Guidance – NGA Technology, https://www.gov.uk/government/publications/2016-nbs-tech-guidelines.

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https://www.gov.uk/government/publications/2016-nbs-tech-guidelines

2.2 In assessing projects for State aid approval, the NCC requires that NGA technologies that are used in NGA white intervention areas must provide the same outputs as those defined for other established NGA network deployments. Specifically, the NCC will expect to see that the technical solution:

● is capable of providing access speeds in excess of 30Mbps download, not only by reference to theory and technical standards, but also by evidence of calibrated performance measurements of an existing deployment within the area of interest or an demonstrably equivalent deployment in a similar geographical environment;

● provides at least a doubling of average download and upload access speeds in the target NGA intervention area;

● must be designed in anticipation of providing at least 15Mbps download speed to end-users for 90% of the time during peak times in the target area, as demonstrated by industry-standardised or reliable independent measurements;

● must show how the solution would adapt to maintain capability and end-user experience in changes to key parameters such as increased take-up and increased demand for capacity, and be able to show using clear calculations that this is both technically and commercially viable;

● must have characteristics (e.g. latency, jitter) that enable advanced services to be delivered e.g. video-conferencing and High Definition video streaming to be provided to end users as evidenced by trials results not necessary obtained within the area of interest; and

● have longevity such that one might reasonably expect increases in performance within the next 7 years.

2.3 In assessing whether the requirement is being met, the NCC will require the applicant to provide evidence of the capabilities detailed above. That evidence might include:

● the Business case, including scenario analysis;

● planning consents having being obtained, or likely to be obtained, for the proposed developments;

● actual deployment of similar scale and end-user density;

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● field trial or commercial deployment supplemented by modelling of different take-up scenarios;

● for wired NGA technologies: access network planning taking due account of wired line length and quality from existing or planned access nodes, to show that the access speeds are realistic in the geographic context;

● for fixed wireless NGA technologies: radio plans and interference analysis, using planning tools correctly calibrated for the target geography, to show that the access speeds are realistic and the spectrum to be used is appropriate for its geographic context;

● proposed product offerings and associated service level guarantees;

● network dimensioning calculations; and

● evidence that the enabling technology has a future development path, such as existing internationally accredited standards, on-going development of new versions of the standards, international research working groups, and diversity of the supply chain.

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3. Evidence of compliance with BDUK NGA Guidelines

Suppliers shall present evidence in the following categories based upon the criteria listed above.

[The example responses in this worked example are derived from material prepared by The Technology Partnership and are reproduced with their kind permission. In order to protect confidentiality, however, some aspects have been replaced with illustrative and fictitious data. Real responses based on this example must include specific operational and network information and shall avoid the generalities inherent in this fictitious example e.g. a real network topology and dimensioning shall be used rather than notional or typical examples. Furthermore, missing appendix material that is not available for this fictitious example would need to be provided in a real case. This example should be regarded as illustrative only rather than a model of perfection: suppliers will be expected to present the most convincing professional evidence. Unwarranted duplication of this example material in a real response would lead to a poor assessment of NGA compliance. Further directives are included in square brackets below which should be removed and replaced with actual information]

Topic Evidence [replace stated example with your evidence]

30Mbps capability

For example:

a. Evidence that physical/technological constraints are accounted for the planned coverage area (e.g. transmission line characteristics, radio propagation etc.); and

ExampleNet’s proposes solution incorporates 3 access components to cover 5 891 premises across all of the different types of terrain within the target area in Exampleshire.

Solution Premises PassedFTTC 3 506FTTP 637FWA 1 748

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The FTTP solution is based upon GPON with a downlink rate of 2.4Gbps which is equally split a maximum of 32 times to provide a minimum of 75Mbps per subscriber. Our company affiliate ComparativeNet had been operating this well-proven technology for the benefit of residents and business in Comparativeshire for 3 years. Full details of the GPON standard its ability to achieve 75Mps access speeds in a 32:1 configuration are included (see Appendix H – ComparativeNet Architectural Design). [The supplier shall include an actual architectural design in Appendix H]

The FTTC solution is capable of 80Mbps at up to 300m from a street cabinet but decreases with distance (see chart). The SLU network access links are arranged so that all targeted premises can obtain 30Mbps or greater. In almost all circumstances that can be achieved within a straight line distance of 0.8km from an access point which (see Appendix A – FTTC Distance versus Speed). This distance is equivalent to 1.1km physical line length and is based upon a survey of 637 FTTC VSDL mapped straight line and line length distances from ComparativeNet’s FTTC network, and the speeds are measured by the same cabinet DSL equipment that is planned for ExampleNet.

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88Mbps can be supported in 5.8GHz Band B unlicensed spectrum (see Appendix B – Link Budget). This, however, represents the worst case because, where possible, ExampleNet’s licenced Band C spectrum, using higher radiated power levels, will be used where possible allowing a minimum access of 97.5Mbps. A survey of 75 ComparitiveNet wireless access links, including 6 links exceeding 4.5km distance, showed that all links supported an access speed exceeding 90Mbps using the same equipment and design rules as are planned for ExampleNet.

b. Description of the network design’s upgradeability to support 30Mbps in future; and

All planned access solutions are capable of greater than 30Mbps operations as described above. The full network solution including backhaul, core network and Internet connectivity also supports 30Mbps capability to each user as described in the following sections.

c. Manufacturers’ product descriptions and configuration manuals; and

A full set of equipment specifications, data sheets, operating and service manuals downloaded from the equipment providers’ websites has been included (see Appendix C – Equipment Specifications). These specifications are ordered by type within the ZIP file into the following categories: FTTP, FTTC, FWA and backhaul. [The supplier shall include actual equipment specifications in Appendix C]

d. Evidence of a commercially offered NGA-compliant 30Mbps product (e.g. on a web-site).

ExampleNet is not currently operating a commercial network. However the retail offer and products will be substantially the same as ComparativeNet’s offer, including the Bronze, Silver, and Gold packages described there. The Gold Package will be available to all premises passed and will provide at least 30Mbps access speed and an unlimited monthly data cap priced at £30 per month plus a £100 initial installation charge. Please see http://www.comparativenet.fake/products.htm for further details.

Doubling of download

For example:

a. A survey of current download speeds per premise/postcode e.g. from public data published by Ofcom; and

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http://www.comparativenet.fake/products.htm

access speedCurrent Ofcom speed data per postcode was downloaded from the following location on 1/11/2015 from http://maps.ofcom.org.fake/broadband/broadband-data/ (see columns D to G in Appendix D – Access Speed per Postcode). Approximately 60 (1%) of postcodes were checked manually using BT postcode speed checker (http://www.productsandservices.bt.fake/products/speed-checker/) and these results were also included in Appendix D. According to this analysis, the average speed across all target postcodes is 7.5Mbit/s and the highest estimated speed is 29.6Mbit/s. See extract below and spreadsheet formulae within Appendix D itself.

A B C D E F G H I J K L M N O O

2 Exampleshire Postcode Analysis

4 Postcode Village Lines < 2Mbps Average (Mbps) Median (Mbps) Max(Mbps) Existing NGA All Premises Upgrade Postcode Technology Overspill Coverage New NGA Speed New NGA Premises5 Total 593 74 7.5 7.5 29.6 0 5910 590 0 29.9 58916 Percentage 100.0% 12.5% 0.0% 99.5% 0.0% 99.7%7 Postcode Village Lines < 2Mbps Average (Mbps) Median (Mbps) Max(Mbps) Existing NGA All Premises Upgrade Postcode Overspill Coverage New NGA Speed New NGA Premises8 ES1 0QV Alphon N 14.4 13.6 19.6 N 17 Y FTTC N 30 179 ES1 0YP Alphon N 3.2 3.5 4.1 N 12 Y FTTC N 30 12

10 ES1 1MP Alphon N 10.1 11.1 10.4 N 12 Y FTTC N 30 1211 ES1 2XO Alphon N 14.0 13.7 19.5 N 7 Y FTTC N 30 712 ES1 3BS Alphon Y 1.5 1.4 1.9 N 7 Y FTTC N 30 713 ES1 4QF Alphon N 7.8 7.5 13.7 N 1 Y FTTC N 30 114 ES1 5MN Alphon Y 1.2 1.3 2.4 N 14 Y FTTC N 30 1415 ES1 6UX Alphon N 9.2 8.6 12.3 N 5 Y FTTC N 30 516 ES1 7NH Alphon N 8.3 7.9 14.6 N 11 Y FTTC N 30 1117 ES1 7ZQ Alphon N 7.7 8.1 14.3 N 6 Y FTTC N 30 6

b. Design information showing that access download speeds will be or are doubled by the new network in each premise/postcode compared with current speed data.

Appendix D also shows the maximum range of each postcode from the serving cabinet or access point calculated from the network design data included below. 99.5% postcodes within the target area will receive 30Mbps according to the maximum distances described above, and similarly 99.5% of postcode speeds are doubled when compared with the Ofcom and BT data mentioned above. This corresponds to 99.7% of all target postcodes gaining new NGA service.

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http://www.productsandservices.bt.fake/products/speed-checker/

http://maps.ofcom.org.fake/broadband/broadband-data/

Doubling of upload access speed

For example:

a. A survey of current upload speeds per premise/postcode e.g. from public data published by Ofcom; and

[Provide equivalent information to the doubling download speed section above]

b. Design information showing that access upload speeds will be or are doubled by the new network in each premise/postcode compared with current speed data.

[Provide equivalent information to the doubling download speed section above]

15Mbps download speed 90% of time in busy hour

For example:

a. A forecast of the distribution (or average) traffic demand per user over time. Authoritative data from other comparative deployments and publically domain sources should support these forecasts; and

According to the Ofcom Fixed Broadband Map 2013 (reference http://maps.ofcom.org.fake/broadband/) the average data use in Exampleshire is 30.7 GB/connection/month. This equates to an average aggregate data rate of 95kbps.

Measurements from ComparativeNet’s network in Comparativeshire record an average of 87kbps per user over a month. The peak traffic in any peak hour in that month was found to be 348kbps averaged across all 5 600 users, as shown in the chart in Appendix H. It is assumed that the same 4:1 peak hour to average ratio of data usage will be found in Exampleshire, corresponding to a peak hour usage of 380kbps.

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http://maps.ofcom.org.fake/broadband/

From plotting the UK dataset of GB/connection/month against connection speed and performing curve fitting the Ofcom data, we estimate that the UK average data use for a 25Mbps connection is 40GB per user per month. This equates to 124kbit/s average, or 496kbps per user in the peak hour after applying the 4:1 ratio. This most conservative figure of 496kbps is used for the following analysis for year 2015, and it is also conservatively assumed that all traffic is in the downlink

We assume a further 27% compound growth (reference http://www.cisco.com/c/en/us/solutions/service-provider/visual-networking-index-vni/index.html) and conclude that an expected average transfer rate during any minute in busy hour in Exampleshire in 7 years will be approximately 2.6Mbit/s.

b. Network dimensioning of links and nodes to meet these demands (including statistical multiplexing calculations and over-dimensioning where needed to manage statistical variations); and

A statistical analysis was performed to determine network dimension levels based on this busy hour average using the following approach:

Individual data usage follows a truncated exponential probability density function, a distribution widely used in telecommunications Total data demand can then be obtained by adding the probability density functions for the given number of users, giving a graph such as

the following (for 20 users).

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http://www.cisco.com/c/en/us/solutions/service-provider/visual-networking-index-vni/index.html

http://www.cisco.com/c/en/us/solutions/service-provider/visual-networking-index-vni/index.html

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The cumulative probability density function allows us to model the likelihood that the average demand will not exceed a particular value. For the same number of users this looks like the following (in this case, the 95 th centile demand level is 73Mbit/s):

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We then over-provision by 15Mbit/s to ensure that at any time, any user is able to receive an additional 15Mbit/s; in this case, 20 users would require 88Mbit/s capacity.

The process can be repeated for different numbers of users, illustrated in the following graph and table.

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Thus, for a FWA base station (whether one or more sectors) that covers 57 premises, we would expect 20 subscribers at 35% take-up rate. In this case a minimum of 88Mbit/s backhaul will be provided, to ensure at least 15Mbit/s is available with 95% probability, based upon all of the conservative assumptions described above.

Similarly for FTTC and FTTC connections all aggregation nodes and links in the network will provide an amount of download capacity at least equal to the right hand column of this table, on the basis of 35% take-up rate, and according to the aggregate number of users supported at each node.

c. Evidence of sufficient backhaul, core network and Internet transit capacity for forecasted user traffic demands over time.

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ExampleNet plans to deploy FWA base stations and FTTC/FTTP cabinets and provision backhaul and Internet transit to provide an amount of download capacity at least equal to the right hand column of this table, on the basis of 35% take-up rate. Full details are included in Appendix E – Network Dimensioning.

Future capacity

For example:

a. User and traffic growth forecast that are comparable with both the supplier’s business model and public domain forecasts; and

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A B C D E F G H I J K L M

2 Exampleshire Traffic Forecast and Network Dimensioning3

4 Max Capacity 2015 2016 2017 2018 2019 2020 2021 20225

6 Premises Covered FTTC 3,506 1,753 3,506 3,506 3,506 3,506 3,506 3,506 3,506 7 FTTP 637 318 637 637 637 637 637 637 637 8 FWA 1,748 874 1,748 1,748 1,748 1,748 1,748 1,748 1,748 9 Total 5,891 2,945 5,891 5,891 5,891 5,891 5,891 5,891 5,891

10

11 Takeup % 35% 5% 10% 20% 25% 30% 35% 35% 35%12 Customers 2,061 147 589 1,178 1,472 1,767 2,061 2,061 2,061 13

14 Maximum downlink traffic Mbps/user 2.64 0.50 0.63 0.80 1.02 1.29 1.64 2.08 2.6415 Total network traffic Gbps 15.57 1.46 3.71 4.71 5.99 7.60 9.65 12.26 15.5716

17 Deployment FTTx Cabinets 24 12 24 24 24 24 24 24 24 18 FWA Sectors 72 36 72 72 72 72 72 72 72 19 200Mbps FWA links 12 6 12 12 12 12 12 12 12 20 1Gbps FTTx Links 12 6 12 12 12 12 12 12 12 21 10Gbps Backhaul Links 6 3 6 6 6 6 6 6 6 22 10Gbps Core Links 2 1 1 1 1 1 2 2 2 23

24 Traffic/Subscribers per FTTx Cabinet 309 9 17 35 43 52 60 60 60 25 FWA Sector 20 1 2 5 6 7 8 8 8 26 200Mbps FWA link 50 4 7 15 18 22 25 25 25 27 1Gbps FTTx Link 309 9 17 35 43 52 60 60 60 28 10Gbps Backhaul Link 3,250 74 295 589 736 884 1,031 1,031 1,031 29 10Gbps Core Link 3,250 147 589 1,178 1,473 1,767 1,031 1,031 1,031 30

31 Traffic/Mbps per FTTx Cabinet 900 52 80 133 158 184 209 209 209 32 (including overheads FWA Sector 88 25 30 39 43 47 51 51 51 33 and 15Mbps headroom) 200Mbps FWA link 180 35 47 71 83 94 106 106 106 34 1Gbps FTTx Link 900 52 80 133 158 184 209 209 209 35 10Gbps Backhaul Link 9,000 247 860 1,659 2,058 2,455 2,855 2,855 2,855 36 ` 10Gbps Core Link 9,000 454 1,659 3,263 4,079 4,894 2,855 2,855 2,855 37

38 Utilisation per FTTx Cabinet 80% 6% 9% 15% 18% 20% 23% 23% 23%39 (including overheads FWA Sector 80% 28% 34% 44% 49% 53% 58% 58% 58%40 and 15Mbps headroom) 200Mbps FWA link 80% 19% 26% 39% 46% 52% 59% 59% 59%41 1Gbps FTTx Link 80% 6% 9% 15% 18% 20% 23% 23% 23%42 10Gbps Backhaul Link 80% 3% 10% 18% 23% 27% 32% 32% 32%43 10Gbps Core Link 80% 5% 18% 36% 45% 54% 32% 32% 32%

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Latency and jitter

For example:

a. Calculations of end-to-end latency and jitter from manufacturer’s or suppliers’ specifications; and

The solution is designed to be low latency. A latency budget, for a system operating below maximum capacity and thus excluding buffering delays, can be estimated as follows:

Latency FTTC FTTP

FWA Source

Internet transit 2ms 2ms 2ms ComparativeNet measurementsFibre/backhaul 2ms 2ms 2ms ComparativeNet measurementsDSLAM 1ms Equipment specifications (see Appendix C)VDSL model 1ms Equipment specifications (see Appendix C)FWA link 15ms Equipment specifications (see Appendix C)Microwave link 10ms Equipment specifications (see Appendix C)TOTAL 6ms 4ms 31ms

Manufacturers do not generally specify jitter, as it is largely driven by traffic loading and is strongly influenced by whether traffic shaping and/or prioritisation is being performed on the network links. ExampleNet’s network is not designed with any traffic shaping or prioritisation, and network loading on individual elements is kept below 60% by design. Latency measurements of ComparativeNet show a variation (jitter) of less than 5ms in 99% of measurements.

b. Measurements of latency or jitter from a reference network; and

Latency (including any jitter) on ComparativeNet is below 40ms for 99.9% of measurements for the latest monthly monitoring interval (see Appendix H).

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c. Demonstration that latency and jitter performance meets the requirements of typical applications (e.g. video conferencing, telephony).

The total buffering delay (latency plus jitter margin) is expected to be significantly less than 100ms as is considered acceptable for real time voice and video communication.

Supporting business case

For example

a. A business case that demonstrates that revenue versus cost of the proposed network provides a positive return on investment for different take-up scenarios; and

See Appendix G – Business Case.

[The example Appendix G is highly simplified: the supplier shall include all necessary complexity while maintaining clarity. The supplier shall provide a business case sensitivity analysis considering different take-up scenarios. In its assessment, the NCC assessment will consider both the reasonableness of the take-up scenarios themselves as well as the related business case sensitivity results.]

b. Evidence of sufficient funding availability (including an assumption of any government subsidy where appropriate) to build the network as planned.

Evidence of funding is included in Appendix G. [The supplier shall include actual evidence of funding]

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Planning consents

For example:

a. Sample planning consents or applications; and/or

The proposed network requires a significant number of new radio masts. As all are in national park areas, they cannot be built under the new notification-based General Permitted Development Order process. As a result planning applications are expected to be needed for all new sites.

Planning applications are currently in preparation, with a view to submitting planning applications in November 2015, and initial discussions have already been held with the two planning authorities as well as the relevant district councils and parish councils.

In addition, steps are being taken to mitigate potential issues: masts are being designed to be low profile, will be concealed against trees where this is possible, and will be coloured according to advice from the planning authority. We are also taking steps to comply with the national park planning guidelines, specifically:

using existing masts where these are available (two sites in total), and;

where the cost impact is negligible, specifying spare structural capacity for all new mast sites so that another operator or operators would be able to use them in future.

There is also recent precedent where local wireless ISPs have been able to construct the masts that they need in both national parks (as reported recently in the Alphon Gazette).

The planning application process is currently in progress:

Pre-application: for the Alphon area, a meeting will be held with County Council, National Park/District Council and Parish Council representatives in Alphon on 20 November 2015 (see attached correspondence in Appendix H – Planning Applications). The corresponding meeting in Beaton will be scheduled shortly after this (25 November has been tentatively set as a date);

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The full set of planning applications will be submitted as soon as practicable after these pre-application meetings, taking into account that minor modifications such as colour or materials may be requested. A sample planning application has been included (see Appendix I – Sample Planning Applications); [The supplier shall include actual planning applications in Appendix I]

Because of our early engagement, we are expecting that the planning applications will not receive substantial opposition and will be approved within the statutory timescale for decisions.

b. Letters of support from local authorities and landlords; and/or

See previous response.

c. Constructive correspondence with the relevant council’s planning department.

See previous response.

Comparative deployments

For example and if possible:

a. Description of the comparative deployment, whether a commercial deployment or field trial, and why it is comparative (and the significance of any differences); and

ComparativeNet is mixed FTTC/FTTP and FWA deployment in the adjacent county of Comparativeshire having gained 2,500 new customers after 3 full years of operations. Comparativeshire is also predominantly rural but is coastal and less mountainous. Both network rely on line-of-sight wireless communication and while Exampleshire offers more severe terrain challenges the technology solution is otherwise very similar.

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The FFTC/FTTP network uses the same equipment and design rules as are planned for ExampleNet.

The FWA network uses a previous version of wireless equipment which does not support the highest modulation scheme of the latest equipment to be used for ExampleNet: 256-QAM 1/2. This modulation scheme is not required in the design of ExampleNet either so the two networks are also functionally equivalent for wireless.

Similarly, while the network topology is specific to Comparativeshire, the ExampleNet backhaul architecture and network dimensioning rules follow ComparativeNet closely. Measurements taken on ComparativeNet (e.g. for latency) could, therefore, except to be replicated on ExampleNet. There are some differences: for example ComparativeNet used 100Mbps microwave links rather than the 200Mbps links planned for ExampleNet. Nevertheless ComparativeNet can still offer the same NGA services as ExampleNet albeit with a larger proportion of Basic broadband subscribers. It should also be noted that both networks’ microwave links could be upgraded to 400Mbps with a hardware modification if needed.

b. Description of the comparative networks hypothetical ability to meet any or all of these NGA requirements.

As described in the previous response, ComparativeNet and ExampleNet are functionally equivalent and both can provide NGA services (see Appendix H – ComparativeNet Architectural Design).

Radio and Interference plans

For example:

a. Radio and interference plans that show which premises and postcodes could receive NGA-compliance services (e.g. colour coded by service/grade); and

[The following highly illustrative examples were produced in Microsoft Excel. It is expected that in real networks Microsoft Excel would be inadequate for this purpose and industry standard radio planning tools would be used instead, however, no particular tool is favoured provided

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that it is fit for purpose. These examples indicate the kind of outputs required and the example appendices are highly contrived: the supplier would be expected to replace these with a robust and documented methodology together with further explanation of each output.]

The network coverage area for the planned FWA access points in show below (note: coverage postcodes for FTTP and FTTC are not shown and the axes are marked in kilometres):

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Product offerings and SLAs

For example:

a. Publically available product description (e.g. from a web site); and

As shown on the ComparativeNet web site (http://www.comparativenet.fake/products.htm) ExampleNet broadband pricing is planned as follows:

Connection fee: £100. ExampleNet will select the serving technology (FTTC, FTTP, or FWA) and will supply and install Customer Premises Equipment (CPE). Customers requiring a specific technology that differs from ExampleNet’s selection may face an additional charge based upon the actual connection costs (subject to feasibility).

Monthly service charge per subscriber: £30 for 30Mbps service including VoIP telephony service with unlimited data cap. This will be in addition to a monthly line access charge of £17 per month.

[Note that all pricing here and in Appendix G Business Case is illustrative only: it does not represent any approved pricing.]

b. Sample contract terms and conditions.

Please see Appendix J – Subscriber Terms and Conditions. [The supplier shall include an actual subscriber terms and conditions in Appendix H]

Network dimensioning

For example:

a. Full end-to-end network capacity information including per-link and per-node capacities for access, backhaul, core network and Internet transit; and

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http://www.comparativenet.fake/products.htm

Please see topology diagram below and in Annex L, and the response to the “Future Capacity” section above. Internet Transit will be leased to meet the traffic projection on multiple 10Gbps circuits as required. The ExampleNet core network interconnects with the Internet at ExampleIX’s node in Manchester. A redundant from the core network to ExampleIX’s node in Edinburgh is planned for installation by 2020 Q1 at the latest.

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ExampleNetLogical Topology

17

17

17

AW1

10219

AC2

A

51121

121

51

17

17

17

AW2

10219AC1

17

17

17

BW1

10219

BC2

B

51121

121

51

17

17

17BW2

10219BC1

1717

17

CW1

10219

CC1

51121

121

5117

1717

CW1

10219CC2

17

17

17

FW2

10219

NC2

F

51121

121

51

17

17

17

FW1

10219 FC1

17

17

17

EW2

102

19EC1

E

51

118

51

17

17

17

EW1

10018

EC2

1717

17

DW1

10219

DC2

51121

121

5117

17

17

DW2

10219 DC1

10Gbps

10Gbps

172

172

516

516

688

688

2061

CoreNet

Alphon

Beaton

ChaltonDelton

Echton

Foxton

Key

/ XX1 Node name999 (black) Users per link99 (green) Max FTTP users99 (red) Max FTTC users99 (purple) Max FTTC usersGbps (black) Fibre capacityMbps (purple) Microwave

Backbone linkEdge linkVillage name

X

Name

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b. Demonstration that there are no bottlenecks anywhere in the network that would reduce performance below NGA requirements.

See response to “Future capacity” section above. Capacity management will ensure that any network element that approaches 60% utilisation is upgraded.

Future upgrades and longevity

For example:

a. Future expansion plans (linked to the required capacity growth); and/or

See response to “Future capacity” section above.

b. Plans for new technology deployments in future; and/or

The network has been planned to require no technology upgrades before 2022. However, beyond 2022 equipment upgrades funded from earnings and/or new finance will be considered if needed for:

local capacity management or load balancing longer term capacity management new services

c. Technology roadmap to support forecast future capacity and user requirements.

Specific technology roadmaps are currently unavailable for ExampleNet equipment. However, per-unit link capacities for both fixed and wireless systems can be expected to roughly double every 5 years based upon past experience. Anticipated technology advancement would include 10GPON for FTTP, G.Fast for FTTC, antenna beamforming for FWA and higher capacity microwave equipment. It should be noted that none of

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these advancement are forecast to be needed by ExampleNet before 2022.

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bduk nga state aid assessment template (worked example) - …€¦ · web viewmeasurements from...

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